[1] Chemical analysis of deepwater octocorals collected at 1000 m depth off southern Australia indicates long-term cooling, beginning in the mid-18th century. This cooling appears to reflect shoaling of isotherms along the continental shelf, that can be related statistically, observationally and by modeling to increasing coastal seasurface temperatures, that in turn reflect a poleward extension...

In the coastal oceans, the interaction of currents (such as the barotropic tide) with topography can generate large-amplitude, horizontally propagating internal solitary waves. These waves often occur in regions where the waveguide properties vary in the direction of propagation. We consider the modeling of these waves by nonlinear evolution equations of the Korteweg-de Vries type with variable...

Basinwide very low-frequency (VLF) modes with zonal uniformly deepening and shoaling of the equatorial thermocline are found as solutions of linear shallow-water equations with the meridional basin boundaries under an equatorial b plane. They can be understood as the free heat-content recharge oscillations. The interannual VLF modes had been recognized as the essential part of the coupled recha...

Laboratory experiment is conducted to investigate the long waves generated by time-varying breakpoint. We focus our attention on the variation of plunging point as well as the variation of breaking point. The results show that free long waves (BFLW) are really generated by the variation of the starting point of wave set-up which coincide with the plunging point and that the BFLW observed can be...

Abstract Whilst the effects of inbreeding on growth and survival have been well studied, knowledge impact social behaviour is scarce. Animal groups are often composed relatives, which can facilitate cooperation (due to kin selection) improve group performance accordingly. Therefore, increased genetic relatedness in inbred could increase performance, whilst reduced diversity negative (inbreeding...

A model for the formation and evolution of longshore sand ridges in waters deeper than the shoaling region suggests that a possible but by no means exclusive agent for the formation of these bars are weakly nonlinear dispersive long waves. The model describes how these water waves, which are represented by wave packets, and a sandy bottom topography, conspire to produce sand ridges. This study ...

Naïve kin groups and mixed-family groups of bluegill Lepomis macrochirus larvae were exposed to a novel predator cue. The larvae responded by increasing shoal cohesiveness in kin groups but not in mixed-family groups; moreover, larvae sired by males of the 'cuckolder' life history tended to have an enhanced ability to respond to direct cues of kinship v. larvae sired by males of the 'parental' ...

When presented with stimulus shoals of siblings and conspecifics in equal number, P. sarana subnasutus were able to discriminate their siblings and preferred to associate with them. Given a choice between large shoal and a small shoal consisting of siblings, the juvenile fish preferred to associate with larger stimulus group to the smaller one. However, juveniles traded off their preference for...